Shop name:Chong Qing Shuo Yue Ke Ji You Xian Gong Si 1. Bluetooth 5.1 high-speed and more stable Bluetooth 5.1 core chip, stable and fast transmission, and a straight-line connection distance of 10 meters, making listening more comfortable and enjoying the music fun brought to you wirelessly. 2. Surging sound quality four-unit plus speaker is the , 53MM full-range loudspeaker + double bass diaphragm powerful 4-unit, the cavity determines the sound quality, professional-grade theater-level surround speakers, just like being in the scene 3. MAX theater has volume, high quality and lossless restoration. The metal mesh surface sound hole has no loss of sound quality, continuous sound without interference, and small volume can also enjoy theater hearing. 4. Full-color scene lights move with sound. There are 5 different colorful light modes, which can be independently controlled by buttons. The lights will change rhythmically with the music playing, truly "light moves with sound" 5. Atmosphere Artifact Indoor and outdoor gatherings take into account the colorful lights to create a colorful atmosphere. From gentle to dynamic, from slow rocking to DJ, you can experience the surge of clear sound Applicable scene:desktop, home, live broadcast Connection :Bluetooth connection Frequency response range:100HZ-20KHZ Signal-to-noise ratio: equal 75dB Number of speakers:2 Effective distance:10 meters Power mode:type-c Waterproof level:IPx 3 Bluetooth version:5.1 Rated power:10 Whether built-in battery:built-in battery Speaker unit:2 Colour:Black Material:Plastic Package Contents: 1 * wireless bluetooth speaker 1 * type-c cable 1 * Chinese and English instruction manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.